If you love stories about backing yourself against impossible odds, this one looks like a knockout.

The ultimate underdog story behind one of cinema’s greatest underdog movies.

Before Rocky became one of the most iconic films of all time, it was just a script that almost nobody believed in. Now, that incredible true story is getting the big-screen treatment in I Play Rocky.

Set for release this November, the film follows Sylvester Stallone’s remarkable journey as he writes the screenplay for Rocky while struggling to make ends meet. Despite receiving offers to sell the script, Stallone refuses to give up one crucial demand: he has to play Rocky Balboa himself.

With no major acting credits and plenty of people telling him “no,” Stallone risked everything on the belief that he was the only person who could bring Rocky to life. It was a gamble that could have ended his career before it even began.

Instead, it became one of Hollywood’s greatest success stories.

I Play Rocky stars Anthony Ippolito as Stallone, capturing the determination and resilience that turned an unknown actor into a global superstar. The film promises an inspiring look behind the scenes at the making of a movie that would go on to win three Academy Awards and become a cultural phenomenon.

If you love stories about backing yourself against impossible odds, this one looks like a knockout.

I Play Rocky arrives exclusively in Australian cinemas this November.